Charles herbert melvin



(No Model.)

2 Sheets-Sheet 2.

C. H. MELVIN.. STOVE.

No. 493,594. Patelanted Mar. 14, 1893.

YN: mams Evans co., Horn-mmc.. wlsnmoon. D. c. I

UNTTEE STATES PATENT Errea.

CHARLES HERBERT MELVIN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY

MESNE ASSIGNMENTS, OF TWO-THIRDS TO I-IIMSELF AND GEORGE E. GEE, OF SAMEPLACE.

STOVE.

SPECIFICATION forming part of Letters Patent No. 493,594, dated March14, 1893. Application led January 2, 1892. Serial No. 4] 6,808. (Nomodel.)

To all whom it may concern: formed of rectangular flat pieces of sheetBeit known thatI, CHARLES HERBERT MEL- steel having their edges bent orfolded back VIN,a citizen ofthe United States, residing at to formlanges for the interlocking joints. Minneapolis, in the county ofHennepin and Of these, the bottom plate has its four edges 5 State ofMinnesota, have invented certain new turned downward forming the down[langes 55 and useful Improvements in Stoves; and I do B. The front,rear and side plates have their hereby declare the followingr to be afull, clear, lower edges turned upon themselves inward and exactdescription of the invention, such and upward forming flanges H, forengageas Will enable othersskilledin theartto Which ment With the saiddown flanges B of the IO it appertains to make and use the same. bottomplate and are held in position, when 6o My invention relates to stoves;and more set up, by the angle bars H', removably separticularly to astove having dampers of cured by bolts and nuts h to each of the saidnovel construction and arrangement, as will side and end plates directlyover the said hereinafter more fully appear. flanges. Each of thevertical edges of the I5 The stove illustrated in connection with myside and end plates are folded or turned out- 65 invention isconstructed of sheet metal With ward and then backward upon themselvesthe exception of the top plate of the stove, forming flanges K, forengagement with the all the plates being of flat form anddetachremovable corner pieces G. These corner ably united by means offlanges on the joinpieces or caps G, are of angular form in ing edges ofthe plates. Certain of the joincross section and have their verticaledges 7o ing flanges may interlock directly with each turned inwardforming flanges g,of hook-like other and others be connected byremovable form for engagement with the out-turned hook-like cornerpieces which slide endwise Iianges K of the side plates, the engagementover the joining flanges. being eected by an endwise movement of Theinvention is illustrated in the accomthe caps. i 75 panying drawings,wherein like letters refer The four oven platesLhaVe corresponding tolike parts throughout the several views. anges Z on their joining edges,with which Figure l is a View in perspective, showing engage corner orcap pieces L having hookthe stove set up and supported on a suitablelike flanges Z', in a manner exactly the same 3o base. Fig. 2 is avertical section on the line as the vertical corners and cap pieces ofthe 8o X X of Figs. l and 3. Fig. 3 is a plan View stove body. This ovenis secured between of the stove, some parts being broken away. the frontand rear plates of the stove body, Fig. 4 is a horizontal section on theline Y Y by being placed in position with one end teleof Fig. l. Fig. 5is a detail of the draft scoping overthe joint flange Dsecured tothedampers, removed from the stove. back plate and the other over theinwardly 85 A, B, O, D, E, F and G are the knockdown projecting jointilange C on the oven door parts of the stove body, of which A is thetop, frame C2, which is secured by rivets to the B is the bottom, O thefront plate, D the rear front plate of the stove body. or back plate, Ethe right and F the left end To more rmly secure the oven in position 40plate, and G are the four corner pieces for seand give an additionalrigidity to the stove 9c curing the side and end plates together atbody,apairofrodsMarepassed longitudinally their vertical corners.through the said oven near each side, having The top plate A is a lightcasting provided their heads engaging lugs C3 projecting from with theordinary griddle holes a, and pipe the door frame C2 and their otherends, exthimble d', and having in addition thereto, a tending throughperforations in the back 95 depending flange a2, adapted to telescopewith plate and provided with nuts l for clampthe vertical part of thestove body, when the ing the said parts together. These bolts are stoveis set up. so positioned that they serve as rests for the The bottom ofthe stove and the sides and oven rack L2. ends, as well as the foursides of the oven are N is the bottom grate, N the side grate, N2 roothe tire back and N3 the draft register of the iirebox,'all of thecustomary construction.

P P are angle pieces for supporting the fire box secured respectivelyone to the adjacent plate of thestove body and the other to the adjacentplate of the oven.

Vertical draw-rods R pass through perforations in the top and bottomplates inside the corners and are provided with nuts at their lower endsfor clamping the parts together. One pair of these bolts may also beemployed to secure the vertical grate of the tire-box in position.

The removable vertical and horizontaldrawrods R and M co-operate t0 staythe parts of the stove and hold the same together with the necessaryrigidity.

S and T ari-J swinging dampers hinged to the rear plate D at theiropposite ends by hinges S and T', for opening and closing respectively,the passages S2 and T2, leading from the main body of the stove,respectively above and below the oven, into the back flue U. Thesedampers are preferably so connected that when either is in its closedposition, the other will be in its open position and thrown out into thestove at an angle to the normal line of draft.

As a convenient means of connecting the dampers, I employ the rod W,extending vertically through the draft flue U and pivotally secured inthe back plate D, carrying a pair of crank-arms S3 and T3, which projectin a reverse direction, respectively opposite to and connected by linksS4 and T4 with the dampers S and T. To the upper end of this rod, whichextends through a perforation in the top plate of the stove, is secureda hand lever W for setting the said dampers in their differentpcsitions. It should be noticed that when these dampers are set ineither of their positions, their operating cranks and connectin g linksstand approximately on a dead center, and hence will hold the dampersagainst the force of the draft, in whichever position they may be set.

The operation of the dampers is as follows-Then desired to cook from thetop of the stove, the lower draft passage T2 is closed by the damper T,hence, the other damper S will be moved into its opened position, asshown in Fig. 3. In this position, the damper S acts as a deflector,preventing the draft from taking a short cut across one side of the ovenin passing from the fire-box to the flue passage S2 and causing the sameto spread out ldalnpers and defiectors.

over the top of the oven and make the complete circuit of the griddleholes; On the other hand, when it is desired to use the oven, as forbaking purposes, the upper draft passage S2 is closed by the damper S,the closing of which will, as before stated, throw the lower damper Tinto its open position as shown in Fig. 4. The draft will then pass fromthe tire-box over the top, down the side, under the bottom of the ovenand through the passage T2 into the back flue of the stove. The opendamper T, then acting as a detlector will cause the fiame to spread outunder the entire bottom of the oven. These dampers, therefore performthe double function of It should be noticed that the said dampers, inorder to give the same suiiicient length for their function asdeflectors, are made longer than would be necessary to close thedraftpassages.

What I claim, and desire to secure by Letters Patent of the UnitedStates,is as follows:

l. In a cooking stove having an interior oven, a pair of combineddampers and deliectors located one above and the other below the oven,controlling respectively the direct and indirect passages to the outletiiue, and arranged each to be thrown outward against the line of draftto act as a detiector when open, substantially as and for the purposeset forth.

2. In a stove provided with an oven, a pair of combined draft dampersand detiectors located one above andthe otherunder the oven, andcontrolling the passages to the outlet fiue, the said dampers beingmounted to move in opposite directions so that when one is open theother is closed and arranged to deflect and spread out the products ofcombustion so that the direct draft must take the complete circuit ofthe griddle holes and the indirect the complete circuit of the oven.

3. The combination with the stove having an interior oven and direct andindirect passages to the outlet flue of the combined dampers anddeliectorsS and T, the operating rod Wprovided with the reverselyrelated cranks S3 and T3 and the links S4 and T4 connecting the samewith the said dam pers, substantially as and for the purpose set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES HERBERT MELVIN.

Witnesses:

WM. D. HULL, JAS. F. WILLIAMSON.

ICO

